Cita APA (7th ed.)

Gwartney, J. D. (1990). Economics: Private and public choice (5th ed.). Harcount brace jovanovich.

Cita Chicago (17th ed.)

Gwartney, James D. Economics: Private and Public Choice. 5th ed. San diego: Harcount brace jovanovich, 1990.

Cita MLA (9th ed.)

Gwartney, James D. Economics: Private and Public Choice. 5th ed. Harcount brace jovanovich, 1990.